Best use the Sony original. Only they know what doping machine they're parts came off of and what the characteristics are. NTE and others list common characteristics and can't possibly list each and every run type. Phil Solarz RAC - National Product Service Phil's Electronics C.E.T. GNN3799 - FMIC 734-718-0301 ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/